The married woman who moved in next door, Nagisa, has a stunning big bust and always goes braless. Her appearance captivates me, making it impossible not to stare. I'm confused—does she intentionally seduce me, or is she simply carefree? One day, unable to suppress my desire any longer, I sneak into her room, only to find Nagisa standing there completely naked. Shaken by her presence and desperate to understand her true feelings, I begin exploring a new relationship with her.